Journal ArticleDOI
Second‐Harmonic Generation in an Elastic Surface Wave in α‐Quartz
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TLDR
Second-harmonic generation was observed in an elastic surface wave propagating in the y direction on the x surface of α-quartz by means of interdigital electrode transducers.Abstract:
Second‐harmonic generation was observed in an elastic surface wave propagating in the y direction on the x surface of α‐quartz The waves were generated and detected by means of interdigital electrode transducers The fundamental frequency was 9 MHz The amplitude of the second‐harmonic signal increased linearly with distance along the crystal surface A nearly perfect square‐law dependence of second‐harmonic power on fundamental power was found The ratio of second‐harmonic to fundamental power was −438 dB at a distance of 22 cm and a fundamental input power of 1 W The results are in quantitative agreement with theoryread more
Citations
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Journal ArticleDOI
Surface elastic waves
TL;DR: In this article, the propagation of various elastic waves at the surfaces of solids is considered, followed by descriptions of the many ways which have been demonstrated for transduction between surface elastic waves and electromagnetic waves.
Journal ArticleDOI
Nonlinear phenomena in the propagation of elastic waves in solids
L K Zarembo,V A Krasil'nikov +1 more
TL;DR: In this article, an expanded version of a paper delivered at the scientific session of the Division of General Physics and Astronomy of the USSR Academy of Sciences on 16 January 1969 is presented.
Journal ArticleDOI
Temperature Dependence of Surface Acoustic Wave Velocity on α Quartz
TL;DR: In this article, a pulsed rf technique was employed to measure the angular dependence of the temperature coefficient of velocity, surface wave delay lines were constructed in which the waves were excited on the quartz by means of an interdigital electrode structure on a glass substrate which was brought into contact with the quartz.
Journal ArticleDOI
Surface acoustic waves in nonlinear elastic media
TL;DR: In this article, the effects of elastic and piezoelectric nonlinearity on the propagation of surface acoustic waves are discussed and methods for their theoretical analysis are described, including wave form evolution of surface waves propagating over long distances and the possibilities of waves of permanent form and localization of shear waves at the surface.
Journal ArticleDOI
Nonlinear surface waves on an elastic solid
TL;DR: In this article, the effect of quadratic elastic nonlinearity on the propagation of surface Rayleigh waves on an isotropic elastic solid is examined using the method of multiple scales and an approximate solution is obtained which is uniformly valid in both spatial directions as well as in time.
References
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Journal ArticleDOI
Direct piezoelectric coupling to surface elastic waves
Richard M. White,F. W. Voltmer +1 more
Journal ArticleDOI
Third-Order Elastic Constants and the Velocity of Small Amplitude Elastic Waves in Homogeneously Stressed Media
R. N. Thurston,K. Brugger +1 more
TL;DR: In this paper, the authors derived exact expressions for the sound velocity and for a natural velocity and their stress derivatives, evaluated at zero stress, in terms of second-and third-order elastic constants.
Journal ArticleDOI
Elastic and Piezoelectric Constants of Alpha-Quartz
TL;DR: In this article, the elastic and piezoelectric constants of alpha-quartz have been determined by the resonance (previously known as dynamic) method employing the extensional mode of bars and the contour-extensional mode I (Lam\'e mode) of square plates.
Journal ArticleDOI
Thermodynamic Definition of Higher Order Elastic Coefficients
TL;DR: In this paper, general thermodynamic definitions of the higher order elastic coefficients of thermoelastic media are presented in tensor and engineering notation, which are natural generalizations of the customary definitions of second-order coefficients.
Journal ArticleDOI
Dislocation Contribution to the Second Harmonic Generation of Ultrasonic Waves
TL;DR: In this article, the dislocation contribution to the generation of the second harmonic of an ultrasonic wave in solids is measured through the changes, as a function of static bias stress, in the amplitude of a fundamental wave (10 Mc/sec compressional wave) propagating in the specimen.